I found the knobs took a little while to get used to. Mainly when turning the knob down. I would put my finger on the knob and move it downward and run out of screen space. However, I found that I could put my finger on the knob and move it too the left and have loads of room to turn it down. I like the fact that there is not any faders, a knob takes up a lot less room on the screen than a fader does. If it had faders, you would have to scroll to another screen to see all the faders.